Steep learning curve - the culture is significantly different than most everywhere else, and learning the language and values is challenging
Company is strongly focused on "decision rights" - it's a definite adjustment from places where employees need permission for everything. That's great if you are the kind of employee who wants to own execution and outcomes, but it can be an uncomfortable adjustment for mid career employees coming from other organizations.
You're either a fit for this culture or you aren't. If you don't want ownership, responsibility, and the consequences for your actions, this isn't the place for you. You're responsible for understanding the business, what's valuable to the business, and contributing to that value. If you just want to punch the clock and get paid, this isn't for you.